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Finding the Fourth Proportional to 250,546.31, 375,819.47 and 216,711.78

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Solution

The fourth proportional to 250,546.31, 375,819.47 and 216,711.78 is: 325,067.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,546.31 : 375,819.47 = 216,711.78 : x
  2. Step 2: Convert to fraction form
    250,546.31/375,819.47 = 216,711.78/x
  3. Step 3: Cross multiply
    250,546.31x = 375,819.47 × 216,711.78
  4. Step 4: Simplify right side
    250,546.31x = 81,444,506,302.36
  5. Step 5: Solve for x
    x = 81,444,506,302.36/250,546.31
  6. Step 6: Final answer
    x = 325,067.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.